Copper paint



Patented Sept. 29, 1925.

UNITED STATES PATENT OFFICE.

ROBERT G. GIANELLI, OF CLIFTON, OREGON, ASSIGNOR 0F ONE-HALF TO FRANK 1VI. FRANCISCOVICH, OF ASTORIA, OREGON.

COPPER PAINT.

No Drawing To all whom it may concern:

Be it known that I, ROBERT Gr. GIANELLI, a citizen of the United States, residing at Clifton, in the county of Clatsop and State of Oregon, have invented certain new and useful Improvements in Copper Paint, of which the following is a specification.

My invention relates to a copper paint, adapted to be applied to the hulls of ships or boats, for preventing barnacles, worms, sea grass, etc., from attaching to the bottom of the ships, and also for preventing rusting of the metal, while not necessarily restricted to this use.

An important object of the invention, is to provide a paint composition of the above mentioned character, which may be stored and shipped in a solid condition, and the constituents of which remain combined in a homogeneous mass, prior to heating for converting the same into a liquid form, to coat the desired object.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the preferred embodiment of my invention, I combine the following ingredients, preferably in the proportions stated 8 parts by weight of suet or tallow, 2 parts by weight of powdered carbon, 2 parts by weight of powdered blue stone, and 2 parts by weight of powdered red lead.

In the production of the paint, the suet or tallow is first heated to convert the same into a liquid form, and it is then carefully strained for removing the particles of skin or flesh that may be present therein. The powdered carbon, powdered blue stone, and powdered red lead are now introduced into the heated liquid suet or tallow, and the entire mass is thoroughly stirred, until all of the ingredients become thoroughly mixed, and a homogeneous mass is produced. It is preferred that the carbon be first introduced and the mass stirred, the blue stone intro- Application filed January 15, 1924. Serial No. 686,459.

duced next and the mass stirred, and the red lead introduced last, and the mass again stirred. However, the invention is not restricted to this precise procedure, as satisfactory results may be obtained by first combining the carbon, blue stone, and red lead and introducing the same into the molten suet or tallow. It is, however, preferred that the mass be thoroughly stirred, until all of the ingredients become thoroughly mixed, whereby a homogeneous mass will be produced.

When this product is allowed to cool, it becomes solid, and I have found that the ingredients do not separate, as is frequently the case with some paints, but remain united in a homogeneous mass. When it is desired to apply the paint, it is first heated so that it is converted into a liquidform, and is applied in this heated liquid condition by means of the usual paint brush or the like.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that chemical equivalents may be employed, and that the proportions of the ingredients, and the manner in which they are combined, may be varied, without departing from the spirit of my invention, or the scope of the subjoined claim.

Having thus described my invention, what I claim is:

A coating composition, which is normally solid so that its constituents will not separate, and is rendered fluid by heating so that it may be applied in a coat or coats to the desired surface, comprising substantially eight parts by weight of tallqw, two parts by weight of powdered carbon, two parts by weight of powdered blue ston e, and two parts by weight of red lead.

In testimony ufliereof l afiix my signature.

ROBERT G. GIANELLI. 

